Railway-frog.



No. 884,278; PATENTED 001'. so, 1906.

' E. B. ENTWISLE.

RAILWAY FROG.

APPLICATION FILED JUNE 6,1905.

WITNESSES:

- usual manner by the two rolled rails UNITED STATES PATENT OFFICE.

. EDWARD BRADBURY ENTWISLE OF J OHNSTOWN, PENNSYLVANIA, ASSIGNOR TO THE LORAIN STEEL COMPANY, A CORPORATION OF PENNSYLVANIA.

RAILWAY-FROG. 5

Specification of Letters Patent.

Patented Oct. 30, 1906.

Application filed June 6,1905. semi No. 263,932.

To all whom, it may concern.-

Be it known that I, EDWARD BRADBURY ENTwIsLE, of Johnstown, in the county of Oambria and State of Pennsylvania, have invented a new and useful Improvement in Railway-Frogs, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of this specification.

My invention is designed to provide a railway-frog of simple and durable construction; and it consists in the novel construction and combination of parts, all substantially as hereinafter described, and pointed out in the appended claims, reference being had to the accompanying drawings, in which Figure 1 is a plan view of a frog embodying my invention; Figs. 2 and 3, sections taken on the lines 2 2 and 3 3 of Fig. 1, respectively; Fig. 4, a plan view showing a modification, and Fig. 5 a section on the line 5 5 of Fig. 4. p g

The letters A A designate the wing portions of the frog, formed by two castings fitted together on the line a and embracing between them the point I), formed inBtle Each of the castings A has an inward projection a, which joins that of the other casting to form the floor and filling of the structure and which fits the web of one of the rails B.

O is a chock between the rails B B.

The whole structure is secured together by the transverse through-bolts or rivets D. The holes for these bolts are preferably somewhat larger than the bolts themselves to leave surrounding spaces, which are filled by s elter (1 or similar material poured in in a mo ten state.

The castings AAare preferably of steel of an extra hard and durable character, such as manganese steel.

It is found in practice that if the wing rails are kept from wearing or cutting away there is comparatively little wear on the point. By making the wing portions. A of more durable material ordinary rolled rails may be used for the point. I may, however, truncate the point formed by the rails B B and cast a short point E integral with one of the pieces A, as shown in Fig. 4.

' ing Figs 4 and 5 show also the further modification of interfitting the portions a, as at (1 in order to prevent relative vertical movement of the two castings.

Another advantage of the construction described is that it obviates the use of loose floor pieces or chocks and provides a floor which is able to withstand the, cutting and pounding of the wheel-flanges.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The herein-described railway-frog, comprising a pair of fitted point-rails, and two wing portions having abutting inward proections which embrace the point-rails and also form the floor and filling of the frog.

2. The herein-described railway-frog, consisting of point-rails or members, and two wing portions consisting each of an integral casting of hard steel, said wing portions havinward projections which abut each other to form the floor and filling of the frog and also embrace the point-rails or members, together with securing bolts or rivets.

3. The herein-described railway-frog, consisting of the point-rails forming a truncated point, and the two wing members having inwardly-extending ortions abutting each other to form the cor of the frog, and embracing said point-rails, oneof said members having an integral point-forming portion which replaces the truncated point of the point-rails.

4. A railway-frog, having two separate wing portions, formed each of a single casting,

and having integral, abutting portions which form the floor and filling of the frog; substantially as described.

5. In a railway-frog, the wing portions formed of castings, and having integral abutted and interfitted portions forming the floor of the frog.

In testimony whereof I have affixed my signature in presence of two witnesses.

EDWARD BRADBURY ENTWISLE.

Witnesses: I

LORETTO M. OOONNELL', H. W. SMITH. 

